GEMeasurement & Control
Pressure Automated Calibration EquipmentUser manual - K0443 Revision B
PACE5000
PACE6000
© 2008 General Electric Company. All Rights Reserved. Specifications are subject to change without notice. GE is a registered trademark of General Electric Company. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affiliated with GE.
PACE Pressure Controller User Manual
IntroductionThis manual contains Installation and operating instructions for PACE Pneumatic Pressure Controllers.
SafetyThe manufacturer has designed this equipment to be safe when operated using the procedures detailed in this manual. Do not use this equipment for any other purpose than that stated, the protection provided by the equipment may be impaired.This publication contains operating and safety instructions that must be followed to make sure of safe operation and to maintain the equipment in a safe condition. The safety instructions are either warnings or cautions issued to protect the user and the equipment from injury or damage.Use qualified * technicians and good engineering practice for all procedures in this publication.
PressureDo not apply pressures greater than the maximum working pressure to the equipment.
Toxic MaterialsThere are no known toxic materials used in construction of this equipment.
MaintenanceThe equipment must be maintained using the procedures in this publication. Further manufacturer’s procedures should be carried out by authorized service agents or the manufacturer’s service departments.
Technical AdviceFor technical advice contact the manufacturer.* A qualified technician must have the necessary technical knowledge, documentation, special test equipment and tools to carry out the required work on this equipment.
General Specification
Display LCD: Colour display with touch screen
EMC EN 61326
Electrical safety EN 61010-1, UL 61010-1, CSA 22.2, No. 61010-1 and IEC 61010-1
Power Supply
PACE 5000: Input range: 100-240V (50/60Hz) 2A, Installation Catergory II, Fuse T2AH250V
PACE 6000: Input range: 100-120/200-240V (50/60Hz) 5A, Installation Cater-gory II, Fuse T5AH250V
Pressure safety Pressure equipment Directive - class: sound engineering practice (SEP)
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Introduction
Environmental Conditions
AbbreviationsThe following abbreviations are used in this manual; the abbreviations are the same in the singular and plural.
Operating Environment Indoor use onlyOperating temperature 10°C to 50°C (50° to 122°F)Storage temperature -20°C to 70°C (-4° to 158°F)Ingress protection IP20 (EN 60529)Operating humidity 5% to 95% RH (non-condensing)Vibration MIL-PRF-28800 Type 2 class 5 Style E/FOperating altitude Maximum 2000 metres (6560ft)Pollution degree 2
a Absolute min Minute or minimuma.c Alternating current mm millimetreALT Altitude mV millivoltsASCII American Standard Code for Information Interchange MWP Maximum working pressureBSP British pipe thread No NumberCAS Calibrated airspeed NPT National Pipe Thread
CSK Countersunk PACEPressure automated calibration equipment
d.c. Direct current Para. ParagraphDPI Digital Pressure Instrument PDCR Pressure transduceretc. And so on PED Pressure equipment directivee.g. For example psi Pounds per square inchFig. Figure PTX Pressure transmitterft Foot ROC Rate of climb (vertical speed)g Gauge RS232 Serial communications standardGPIB General purpose interface bus Rt CAS Rate of Calibrated airspeedHg Mercury Rt MACH Rate of MACHHz Hertz Rx Receive data
IAS Indicated airspeed SCPIStandard commands for programmable instruments
IDOS Intelligent digital output sensor (GE product) SDS Sales data sheeti.e. That is SELV Separated (or Safety) extra low voltage
IEEE 488Institute of Electrical and Electronic Engineers standard 488 (for programmable devices with a digital interface)
Tx Transmit data
in Inch UUT Unit under testkg kilogram V Voltskts knots +ve Positive
m Metre -ve Negative
mA milliampere °C Degrees Celsius
max Maximum °F Degrees Fahrenheitmbar Millibar
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PACE Pressure Controller User Manual
Related PublicationsK0447 PACE 5000/6000 User Guide and Safety InstructionsK0450 PACE Series Calibration ManualK0476 Pressure Control Module User Guide and Safety InstructionsK0472 Remote Communications ManualK0469 Heritage Communications Manual - Instrument Emulation
Symbols
This equipment meets the requirements of all relevant European safety directives. The equipment carries the CE mark.
This symbol, on the equipment, indicates that the user should read the user manual.
This symbol, on the equipment, indicates a warning and that the user should refer to the user manual.Ce symbole, sur l’instrument, indique que l’utilisateur doit consulter le manuel d’utili-sation. Ce symbole, dans le manuel, indique une situation dangereuse.
This symbol warns the user of the danger of electric shock.Ce symbole alerte l’utilisateur sur le danger de choc électrique.
Do not dispose of this product as household waste. Use an approved organisation that collects and/or recycles waste electrical and electronic equipment. For more information, contact one of these: - Our customer service department: www.gemeasurement.com - Your local government office.
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Introduction
WARNINGS
TURN OFF THE SOURCE PRESSURE(S) AND CAREFULLY VENT THE PRESSURE LINES BEFORE DISCONNECTING OR CONNECTING THE PRESSURE LINES. PROCEED WITH CARE.
ONLY USE EQUIPMENT WITH THE CORRECT PRESSURE RATING.
BEFORE APPLYING PRESSURE, EXAMINE ALL FITTINGS AND EQUIPMENT FOR DAMAGE. REPLACE ALL DAMAGED FITTINGS AND EQUIPMENT. DO NOT USE ANY DAMAGED FITTINGS AND EQUIPMENT.
DO NOT EXCEED THE MAXIMUM WORKING PRESSURE OF THE INSTRUMENT.
THIS EQUIPMENT IS NOT RATED FOR OXYGEN USE.
THE GROUND LEAD OF THE INSTRUMENT MUST BE CONNECTED TO THE AC SUPPLY PROTECTIVE SAFETY GROUND.
ISOLATE THE POWER SUPPLY BEFORE MAKING ANY ELECTRICAL CONNECTIONS TO THE REAR PANEL.
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Pressure Units and Conversion Factors
Unit ConversionConvert FROM pressure VALUE 1 in pressure UNITS 1 TO pressure VALUE 2 in pressure UNITS 2, calculate as follows:
Pressure units Factor (hPa) Pressure units Factor (hPa)
mbar 1.0 cmH2O @ 20°C 0.978903642
bar 1000.0 mH2O @ 20°C 97.8903642
Pa (N/m2) 0.01 kg/m2 0.0980665
hPa 1.0 kg/cm2 980.665
kPa 10.0 torr 1.333223684
MPa 10000.0 atm 1013.25
mmHg @ 0°C 1.333223874 psi 68.94757293
cmHg @ 0°C 13.33223874 lb/ft2 0.4788025898
mHg @ 0°C 1333.223874 inH2O @ 4°C 2.4908891
inHg @ 0°C 33.86388640341 inH2O @ 20°C 2.486413
mmH2O @ 4°C 0.0980665 inH20 @ 60°F 2.487641558
cmH2O @ 4°C 0.980665 ftH2O @ 4°C 29.8906692
mH2O @ 4°C 98.0665 ftH2O @ 20°C 29.836983
mmH2O @ 20°C 0.097890364 ftH20 @ 60°F 29.8516987
VALUE 2 VALUE 1 FACTOR 1FACTOR 2------------------------×=
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PACE Pressure Controller User Manual
Table of Contents
1 Description ................................................................................................................................1-1
1.1 Introduction ..............................................................................................................................................1-1
2 Installation ................................................................................................................................2-1
2.1 Packaging ..................................................................................................................................................2-1
Packaging List.............................................................................................................................2-1
2.2 Packaging for Storage or Transportation...................................................................................2-1
2.3 Preparation for Use ...............................................................................................................................2-1
2.4 Pneumatic Connections......................................................................................................................2-2
Pressure supply (Ref: Figure 2-1)........................................................................................2-3
Installation....................................................................................................................................2-4
Supply Equipment.....................................................................................................................2-5
Pneumatic Connection Examples (Ref: Figure 2-3), (Ref: Figure 2-4) &
(Ref: Figure 2-5)...........................................................................................................................2-5
2.5 Rack-mount Option (Ref: Figure 2-6).............................................................................................2-8
General...........................................................................................................................................2-8
Procedure .....................................................................................................................................2-9
2.6 Electrical connections ..........................................................................................................................2-9
Connecting (Ref: Figure 2-7) .................................................................................................2-9
Pressure Control Module Input and Output Connectors ........................................2-10
Communication Connections (Ref: Figure 2-8)............................................................2-11
RS232 Interface..........................................................................................................................2-12
IEEE 488 Interface .....................................................................................................................2-13
3 Operation...................................................................................................................................3-1
3.1 Preparation ...............................................................................................................................................3-1
3.2 Power-up Sequence..............................................................................................................................3-2
3.3 Measure Mode.........................................................................................................................................3-3
AUTO-RANGE (only available with two-channel instruments) .............................3-5
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Controller Off – Increasing Set-point ...............................................................................3-5
Controller Off – Decreasing Set-point..............................................................................3-5
Controller On – Increasing Set-point................................................................................3-5
Controller On – Decreasing Set-point..............................................................................3-5
3.4 Control Mode............................................................................................................................................3-6
Controlling to a new Set-point ............................................................................................3-7
Effort Meter ..................................................................................................................................3-8
Controlling to Ambient/Zero Pressure.............................................................................3-8
3.5 Operation and Example Procedures.............................................................................................3-10
Introduction .................................................................................................................................3-10
Measure and Control Modes................................................................................................3-10
Task..................................................................................................................................................3-11
Divider.............................................................................................................................................3-12
Preset ..............................................................................................................................................3-14
3.6 Global Set-up Selections.....................................................................................................................3-15
Status Area Settings.................................................................................................................3-16
3.7 Barometric Reference Option...........................................................................................................3-16
3.8 Supervisor Set-up...................................................................................................................................3-17
3.9 Instrument Status ..................................................................................................................................3-18
Software ........................................................................................................................................3-19
4 Maintenance .............................................................................................................................4-1
4.1 Introduction ..............................................................................................................................................4-1
4.2 Visual Inspection.....................................................................................................................................4-1
4.3 Cleaning......................................................................................................................................................4-1
4.4 Test................................................................................................................................................................4-1
4.5 Calibration .................................................................................................................................................4-2
4.6 Replacement Parts ................................................................................................................................4-2
Fuse Replacement (Ref: Figure 4-1) ..................................................................................4-2
Filter Replacement (Ref: Figure 4-2)..................................................................................4-4
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Pressure Module Replacement (Ref: Figure 4-3).........................................................4-5
5 Testing and Fault Finding .......................................................................................................5-1
5.1 Introduction ..............................................................................................................................................5-1
5.2 Standard Serviceability Test..............................................................................................................5-1
5.3 Fault Finding.............................................................................................................................................5-3
5.4 Approved Service Agents ...................................................................................................................5-4
6 Reference and Specification...................................................................................................6-1
6.1 Installation Notes ...................................................................................................................................6-1
Gas Supply....................................................................................................................................6-1
Supply Conditioning Equipment.........................................................................................6-1
Maximum Working Pressure................................................................................................6-1
Supply Contamination ............................................................................................................6-1
Systems without a Negative Supply.................................................................................6-2
The need for a Negative Supply (for Optimum Performance) ..............................6-2
6.2 Operational Requirements.................................................................................................................6-4
Negative or Vacuum Supply ................................................................................................6-4
Oil Contamination .....................................................................................................................6-4
Pump Performance ..................................................................................................................6-4
Venting ...........................................................................................................................................6-5
Output Port...................................................................................................................................6-5
Reference Port ............................................................................................................................6-5
6.3 Icons .............................................................................................................................................................6-6
6.4 Measure Set-up.......................................................................................................................................6-9
Pressure Zero ..............................................................................................................................6-9
Process...........................................................................................................................................6-9
Task..................................................................................................................................................6-9
Units.................................................................................................................................................6-9
Global set-up...............................................................................................................................6-9
Set-up Zero...................................................................................................................................6-9
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6.5 Control Set-up..........................................................................................................................................6-10
Vent..................................................................................................................................................6-10
Nudge .............................................................................................................................................6-10
Set-point Limits ..........................................................................................................................6-10
Slew Rate.......................................................................................................................................6-10
Control Mode...............................................................................................................................6-10
Global Set-up...............................................................................................................................6-11
Status..............................................................................................................................................6-11
Vent Set-up ..................................................................................................................................6-11
6.6 Global Set-up............................................................................................................................................6-11
Supervisor Set-up......................................................................................................................6-11
Calibration ....................................................................................................................................6-11
Save/Recall User Set-up ........................................................................................................ 6-11
Display............................................................................................................................................6-11
6.7 Supervisor Set-up...................................................................................................................................6-12
Protective Vent ...........................................................................................................................6-12
In Limits..........................................................................................................................................6-12
Alarms.............................................................................................................................................6-12
Comms ...........................................................................................................................................6-12
Timeout ..........................................................................................................................................6-20
Idle Timeout .................................................................................................................................6-21
Gas Head Correction ...............................................................................................................6-21
Power Up.......................................................................................................................................6-21
Lock Tasks ....................................................................................................................................6-21
Change PIN ..................................................................................................................................6-21
User Defined Units ....................................................................................................................6-21
Instrument Alias Name...........................................................................................................6-21
Language......................................................................................................................................6-22
Adding a Language..................................................................................................................6-22
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Restore as Shipped Settings ................................................................................................6-23
6.8 Options........................................................................................................................................................6-24
Option Enable Process............................................................................................................6-24
Options in the Task Menu......................................................................................................6-24
Leak Test Option........................................................................................................................6-25
Switch Test Option....................................................................................................................6-26
Test Program Option ...............................................................................................................6-28
Barometric Reference Option..............................................................................................6-34
Aeronautical Option.................................................................................................................6-35
Analogue Output Option........................................................................................................6-41
Volts-free Contact Option .....................................................................................................6-42
6.9 Calibration .................................................................................................................................................6-43
6.10 Communications - Instrument Emulation ..................................................................................6-43
6.11 Specification .............................................................................................................................................6-43
6.12 Return Goods/Material Procedure .................................................................................................6-43
Safety Precautions....................................................................................................................6-43
Important Notice .......................................................................................................................6-44
6.13 Packaging Procedure ...........................................................................................................................6-44
Environment ................................................................................................................................6-44
6.14 Vacuum System Parts..........................................................................................................................6-45
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PACE Pressure Controller User Manual
1 Description
1.1 IntroductionThe PACE5000 single-channel and PACE6000 single/dual-channel, Pressure Automated Calibration Equipment measures and controls pneumatic pressures and displays, on a touch-screen, the pressure measurement and controller status. The touch-screen enables selections and settings in both measure and control modes. The instrument can be operated remotely through communication interfaces.
Figure 1-1 PACE5000 General view
Figure 1-2 PACE6000 General view
The rear of the instrument houses all the electrical and pneumatic output and input connections. The electrical connections provide an a.c. power supply, serial and parallel communication interfaces, d.c. output and logic input and output. The system pneumatic controller module contains a positive and negative pressure supply port, an output port, vent port and reference port.The instrument can be mounted in a standard 19 inch rack system (rack-mount option).
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Description
Figure 1-3 PACE5000 Rear view
Figure 1-4 PACE6000 Rear view
Options available are detailed in the product datasheet.Information and notes on applications (Ref: Section 6, Reference and Specification) or www.gemeasurement.com
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2 Installation
2.1 PackagingCheck the contents of the PACE5000/6000 packaging with the list that follows:
Packaging List
1. PACE5000 or PACE6000 Pressure Controller.2. Cable, power supply.3. User guide and CD (UD-0001) containing the full documentation suite.4. Pneumatic Control Module blanking plate (keep this plate for future use).
CAUTIONS
AFTER REMOVING A CONTROL MODULE, USE A BLANKING PLATE TO KEEP THE FLOW OF COOLING AIR.
AFTER UNPACKING AN INSTRUMENT THAT HAS BEEN IN COLD CONDITIONS ALLOW TIME TO STABILISE AND ANY CONDENSATION TO EVAPORATE.
2.2 Packaging for Storage or TransportationTo store or return the instrument for calibration/repair do the procedures that follow:1. Pack the instrument (Ref: Section 6.13, Packaging Procedure).2. Return the instrument for calibration/repair complete the return goods procedure
(Ref: Section 6.12, Return Goods/Material Procedure).Note: The procedure above applies to the pressure control module as a separate item.
2.3 Preparation for UseThe instrument can be used as a:• Free-standing instrument positioned on a horizontal surface.• Rack-mounted in a standard 19 inch rack using the rack-mount option kit
(Ref: Section 2.5, Rack-mount Option (Ref: Figure 2-6)).For free-standing instruments, the feet on the front of the base can be used elevate the instrument to a better viewing angle.Note: Do not obstruct the air cooling outlet on the underside of the instrument and allow a
free flow of air around the instrument, especially at high ambient temperatures.
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Installation
2.4 Pneumatic Connections
WARNINGS
TURN OFF THE SOURCE PRESSURE(S) AND CAREFULLY VENT THE PRESSURE LINES BEFORE DISCONNECTING OR CONNECTING THE PRESSURE LINES. PROCEED WITH CARE.
ONLY USE EQUIPMENT WITH THE CORRECT PRESSURE RATING.
BEFORE APPLYING PRESSURE, EXAMINE ALL FITTINGS AND EQUIPMENT FOR DAMAGE. REPLACE ALL DAMAGED FITTINGS AND EQUIPMENT. DO NOT USE ANY DAMAGED FITTINGS AND EQUIPMENT.
DO NOT EXCEED THE MAXIMUM WORKING PRESSURE OF THE INSTRUMENT.
THIS EQUIPMENT IS NOT RATED FOR OXYGEN USE.
PARALLEL THREADS MUST BE USED. FEMALE THREAD TYPE IS PARALLEL THREAD TO ISO228/1 (DIN ISO228/1, JIS B0202) G1/8.
TAPERED THREADS NOT ALLOWED.
Parallel threads must be used.Female thread type is parallel thread to ISO228/1 (DIN ISO228/1, JIS B0202) G1/8
Tapered threads NOT allowed.
PACE pressure portPACE rear panel
PACE rear panel
PACE pressure port
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Refer to the data sheet for a complete range of adaptors.Pressure supply (Ref: Figure 2-1)
1. The pressure supply must be clean, dry gas, nitrogen or air and at the correct pressure, (Ref: Section 6, Reference and Specification).
2. Make sure the user systems can be isolated and vented.3. Connect pressure and vacuum supplies to the SUPPLY + and SUPPLY - connection
ports.4. Connect the Unit Under Test (UUT) to the required output connection port.
Figure 2-1 Pneumatic ConnectionsNote: For systems requiring NPT connections, please order optional NPT adaptors.
Connection Port
Inputsupply +
ISO228/1 G 1/8 parallel threads (DIN ISO228/1, JIS B0202)supply -
OutputOutput
ISO228/1 G 1/8 parallel threads (DIN ISO228/1, JIS B0202)VentReference
21
1 Connector2 Bonded seal
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Installation
Installation
The safety of any system incorporating the equipment is the responsibility of the assembler of the system.The instrument requires a positive pressure supply, instruments operating in an absolute range or negative pressure range require a vacuum supply. A vacuum supply should be used for a fast response for instruments operating near atmospheric pressure. For dual channel operation two independent pressure and vacuum supplies can be used.
Figure 2-2 Pressure module rear viewNote: When using two pressure modules (Ref: Section , Pressure Module Replacement
(Ref: Figure 4-3)) make sure that:• The module with the highest pressure rating is fitted to the right hand side
Module 1 position as viewed from the rear of the product refer to (Ref: Figure 2-2).
• If two modules have the same pressure rating, make sure that the module with the higher serial number is fitted to the right hand side Module 1 position as viewed from the rear of the product.
Note: All pneumatic connections must comply with the Pressure Equipment Directive (PED) or other regional pressure standards.
Note: When connecting the output ports of two pressure modules together make sure both are either:• below 70 bar
OR• between 100 to 210 bar.
To prevent over-pressurisation of pneumatic parts and maintain compliance with the PED do not mix categories.
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Supply Equipment
Pneumatic supplies should have isolation valves and, where necessary, conditioning equipment.The positive pressure supply should be regulated to between 110% of the full-scale pressure range and MWP stated on the control module.To protect the instrument from over-pressure a suitable protection device (such as a relief valve or bursting disc) must be fitted to prevent over pressurization.On instruments without a negative supply, the positive pressure discharges from the system to atmosphere through the negative supply port. Pipe the negative port to a safe discharge area or fit a diffuser to the negative port.During system pressure vent operations, the pressure discharges from the system to atmosphere through the negative and vent ports. Pipe both ports to a safe discharge area or fit a diffuser to the negative port.Pneumatic Connection Examples (Ref: Figure 2-3), (Ref: Figure 2-4) & (Ref: Figure 2-5)
The examples that follow show a single channel connection detail, using supply equipment described above.
Figure 2-3 Pneumatic Connections without vacuum supply
1) Pressure source 2) Conditioner 3) Filter
4) Regulate to between 110% full-scale and MWP 5) Diffuser*
6) Unit under test 7) Optional reservoir † 8) Protection device
9) Optional differential connection 14) Manual external vent valves
a) Atmosphere
OUTPUT
1 2
34
56
7
+
5
9
a
-SUPPLY VENT REF
8
14
14
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Installation
Note: (Ref: Section 6, Reference and Specification) for details of other system components.
Figure 2-4 Pneumatic Connections with vacuum supply
Note: The PACE option IO-VAC-SYS Vacuum System Check Valve Kit should be used in the vacuum line mounted near the PACE CM -ve port to exhaust most HP gas directly to atmosphere. The vacuum buffer volume needs to be rated at least to the highest system pressure.
Note: (Ref: Section 6, Reference and Specification) for details of other system components.
1) Pressure source 2) Conditioner 3) Filter
4) Regulate to between 110% full-scale and MWP 5) Diffuser*
6) Unit under test 7) Optional reservoir † 8) Protection device
9) Optional differential connection 10) Oil mist trap
11) Vacuum source 12) Normally open electrical release valve 13) Check valve **
14) Manual external vent valves a) Atmosphere
1 2
34
5
6
7
8
9
13
710
12
11a
OUTPUT+ -
SUPPLY VENT REF
14
14
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Figure 2-5 Pneumatic Connections with negative gauge pressure generator
Note: (Ref: Section 6, Reference and Specification) for details of other system components.
1) Pressure source 2) Conditioner 3) Filter
4) Regulate to between 110% full-scale and MWP 5) Diffuser *
6) Unit under test 7) Optional reservoir † 8) Protection device
9) Optional differential connection a) Atmosphere
10) Vacuum generator ‡ 11) Source pressure (regulated compressed air supply)
12) Exhaust to atmosphere 13) Check valve ** 14) Manual external vent valves
* High pressure gas exhaust - depending on pressure range.
**Optional vacuum system kit, allows the -ve port gas to be directly discharged to atmos-phere, by-passing the vacuum pump.
†
Optimum controller transient response and minimum time to set-point may be degraded if either the pneumatic supply or vacuum system has restricted flow. Installing a reservoir vol-ume, which has larger capacity than the load volume, located in close proximity to the con-troller supply ports can improve the controller response.
‡ Optional negative gauge pressure generator kit.
To protect the control module, for ranges of 70 bar and above from over-pressure a suitable protection device (such as a relief valve or bursting disc) must be fitted to limit the applied supply pressure to below the MWP.
Optional differential connection kit.
1 2
34 7
8
5
6
9
13
710
12
11
OUTPUT+ -
SUPPLY VENT REF
a
14
14
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Installation
2.5 Rack-mount Option (Ref: Figure 2-6)General
There must be enough space at the rear of the instrument for all the cables and pipes. The length of the cables and pipes must allow for the removal and fitment of the instrument. The cooling air of the instrument must not be obstructed. Allow a free flow of air through the equipment rack and around the instrument, especially at high ambient temperatures.
Figure 2-6 Rack-mounting
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Procedure
1. Locate bracket in rack assembly .2. Remove the four M3x10mm countersunk screws from each of the instrument side
panels.
3. Locate the two brackets on each side of the instrument.
4. Secure with the four countersunk screws.5. Support the instrument and connect the cables and pipes.6. Refer to the electrical connections below before fitting the instrument into the rack.7. Temporarily locate the two spigots* to each side of the equipment rack.8. Locate and slide the instrument into the rack.9. Locate the instrument on the spigots*.10. Secure the instrument in the equipment rack with two of the screws and washers
(supplied).11. Remove the two spigots* and replace with the remaining two screws and washers
(supplied).2.6 Electrical connections
WARNINGS
THE GROUND LEAD OF THE INSTRUMENT MUST BE CONNECTED TO THE AC SUPPLY PROTECTIVE SAFETY GROUND.
ISOLATE THE POWER SUPPLY BEFORE MAKING ANY ELECTRICAL CONNECTIONS TO THE REAR PANEL.
Connecting (Ref: Figure 2-7)
1. Install an accessible power isolator to use as the disconnecting device in the power supply circuit.
2. For the power input power supply range, Installation Category and VA (Ref: General Specification).
Note: The power must be supplied by a fused or overload-protected power supply.3. Connect the power supply to the instrument.4. Switch the power supply on.5. Check that the front panel display shows the power-up sequence
(Ref: Section 3.2, Power-up Sequence).
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Figure 2-7 Electrical Connections
Pressure Control Module Input and Output Connectors
24V DC Output @ 100mA maximum
An integral self-resetting fuse protects this output.Logic (switch) Input
This facility can be used to trigger the instrument from a pressure switch contact during the Pressure Switch Task (Ref: Section 3.4, Control Mode).Connections are not polarised and can be connected either way. Integral opto-isolators protect this input circuit.This facility can be energised by external SELV compliant equipment.
4-way connector: pin “+” = +24 Vdcpin “-” = 0 Vdc
4-way connector: InputOutput
3
2
1
1 IEC power connector2 Fuse carrier3 Fuse
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Communication Connections (Ref: Figure 2-8)
Connect the applicable connectors into the rear panel communications ports and, if appropriate, secure with the captive screws.Note: Refer to the data sheet for a list of optional communication ports.
Refer to the data sheet for a list of standard shipped communication ports.Set the required parameters in Supervisor Setup/communications menu, (Ref: Section 3.8, Supervisor Set-up).
Figure 2-8 Communication Connectors
1 RS232 3 IEEE488 4 USB B5 USB A 6 Ethernet
1
3 45 6
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Installation
RS232 Interface
When using the RS232 interface, a cable must be connected directly from the instrument to a suitable port on the computer in a ‘point to point’ link. The pin connections for the 9-pin D-type, RS232 connector and the relationship between the instrument and the RS232 control signals, together with device interconnection interface is shown in (Ref: Table 2-1). The instrument is configured as Data Circuit Terminating Equipment (DCE).
Table 2-1 RS232 Connections
Handshaking Connections
Instrument Control Line Computer/Printer
Instrument Function
Connector9-wayD-typePin No.
SignalDirection
RS232 Terminology
Connector Type
9-wayD-typePin No.
25-wayD-typePin No.
RxD (I/P) 3 TxD 3 2
TxD (O/P) 2 RxD 2 3
GND 5 GND 5 7
CTS (I/P) 7 RTS 7 4
RTS (O/P) 8 CTS 8 5
Pulledhigh
internally1
RLSD(DCD)
1 8
Not connected
4 DTR 4 20
Pulledhigh
internally6
DSR DCE Ready
6 6
Equipment chassis
Connector shell
Cable Screen - 1
Software handshaking use: TXD, RXD and GND.Hardware handshaking use: TXD, RXD, GND, CTS, RTS and DTR.
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IEEE 488 Interface
The interface complies with IEEE 488 standard. The IEEE 488 parallel interface connects a computer/controller to one or more PACE instruments and other instruments. Up to 30 instruments can be connected through a high-speed data bus to the computer/controller.Note: The length of each IEEE 488 cable must be less than 3 metres to comply with the EMC
requirements (Ref: Section 6, Reference and Specification).
Single Unit Installation (Ref: Figure 2-9)1. Connect an IEEE 488 connector/cable assembly to the rear panel of the instrument.2. Connect the other end of the connector/cable assembly to the IEEE 488 connector on
the controller/computer.3. Change the IEEE 488 communication parameters (Ref: Section 6.7, Supervisor Set-up).
Multiple Unit Installation (Ref: Figure 2-9)To install multiple units use stacking plugs to link the first instrument and second instrument as follows.1. Connector to rear panel of first
instrument (Ref: Illustration).2. Connector from controller/computer
(Ref: Illustration).3. Connector to rear panel of second
instrument (Ref: Illustration).4. Connect the IEEE 488 connector on
the controller/computer and the other connector into the next instrument.
5. Repeat this procedure for all the instruments in the system.6. Use the Supervisor set-up (communications) menu on each instrument to set-up the
required communication parameters (Ref: Section 3.8, Supervisor Set-up).
1
2
3
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Installation
Figure 2-9 IEEE 488 Connection
IEEE
488
ADD
RESS
1
ADD
RESS
2
ADD
RESS
N (
30 m
axim
um)
6 7 8
DAV
(DAT
A VA
LID
)N
RFD
(NO
T RE
ADY
FOR
DAT
A)N
DAC
(NO
DAT
A AC
CEPT
ED)
5 9 10 11 17
EOI (
END
OF
IDEN
TIFY
)IF
C (IN
TERF
ACE
CLEA
R)SR
Q (S
ERVI
CE R
EQU
EST)
ATN
(ATT
ENTI
ON
)RE
N (R
EMO
TE E
NAB
LE)
1 2 3 4 13
DIO
1D
IO2
DIO
3D
IO4
DIO
514 15 16
DIO
6D
IO7
DIO
8
18 19 20 21 22
GN
D (6
)G
ND
(7)
GN
D (8
)G
ND
(9)
GN
D (1
0)23 24
GN
D (1
1)G
ND
12CH
ASSI
S/FR
AME
CHAS
SIS/
FRAM
E
DAT
A/ST
ATU
SBA
R
0V (G
ND
)
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3 Operation
This section contains quick reference charts detailing all the available functions and the set-up menu.
3.1 PreparationMake sure the electrical cables and pneumatic pipes comply with the installation requirements (Ref: Section 2, Installation).Before use do the following:1. If necessary, do the maintenance task (Ref: Section 4, Maintenance).2. For bench-top, single instrument operation do the following:
a. Connect the instrument to the electrical supply.b. Inspect the pneumatic hoses for damage, ingress of dirt and moisture.
3. Before use, the instrument should be tested.4. Review and become familiar with the procedure before starting a process on a
component or system.Note: The touch-screen can be permanently damaged by sharp objects.
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Operation
3.2 Power-up SequenceThe following sequences of operation shows the instrument display.Note: The following sequence is an example, the values and selections displayed depend on
the range(s) and options enabled in the instrument (Ref: Figure 3-1).1. Set the power supply to ON:2. The display shows the power-up sequence.3. The instrument carries out a self-test.4. If the test finds a fault, the display shows an
error (Ref: Section 5.3, Fault Finding).5. If the self-test is successful the system
enables the touch screen and changes to measure mode.
6. The touch screen shows the measured pressure in the parameters selected in set-up.
7. The instrument is now ready for use.Note: The PACE 6000 shows a single display
(default) this is the left hand pressure control module. Change to dual display in Global Set-up/Display.
Figure 3-1 Touch screen areas
1 Measure set-up 2 Control/Measure 3 Nudge up 4 Set-point entry5 Status (touch to enter control set-up 6 Nudge down
1
2
3
456
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3.3 Measure Mode
Figure 3-2 Display Icons
1 Pressure measurement of current selected sensor in current selected pressure measurement units2 Current enabled functions 3 Control/measure selection4 Nudge up, changed in control set-up 5 Current set-point value, change with numeric keys6 Nudge down, changed in control set-up 7 Status area, changed in global set-up
Auto zeroControl mode with over-shoot
Percentage
Reference level difference(gas head correction)
Control mode with no over-shoot
Timed zero
Control mode active Filter pressure reading Tare enabled
Control mode passive Linear rate Zero
Control mode gauge Maximum rate
PACE5000
PACE6000
1
2
3
4
56
7
7
1
2
3
4
56
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Operation
current pressure reading to zero, offset stored for current range.
allows selection of available pressure ranges.
PACE5000
PACE6000
-
-
select from list of available pressure measurement units.
-
Absolute range selection available when barometric option installed.Auto-range only available with two-channel instruments.
%Filter pressure readingTare
Pressure zero
Range
Process
Task
Units
Global set-up
Set-up zero
Status
Measure set-up
More
TimedAutoTare
Next page of menu options. Loops from last page to first page.
Stores settings and exits set-up.
see 3.6:-
next page:-
Exit set-up.
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AUTO-RANGE (only available with two-channel instruments)
Note: Not all Auto-Range and task functions are available using the remote communications, this allows more flexibility to the remote programmer.
Controller Off – Increasing Set-point
With both controllers in Measure mode, if a set-point within the range of the lower ranged controller is entered and Control is then selected the lower ranged controller controls to the entered set-point.With both controllers in Measure mode, if a set-point above the range of the lower ranged controller is entered and Control is then selected, then the range is changed to the higher ranged controller and this then controls to the entered set-point.Controller Off – Decreasing Set-point
With both controllers in Measure mode, if a set-point within the range of the higher ranged controller is entered and Control is then selected the higher ranged controller controls to the entered set-point.With both controllers in Measure mode, if a set-point above the range of the lower ranged controller is entered and Control is then selected, then the higher ranged controller will control to this set-point. When the controller is in limits then the range is changed to the lower ranged controller and this then controls to the entered set-point.Controller On – Increasing Set-point
With the lower ranged controller in Control mode, if a set-point within the range of the lower ranged controller is entered then the lower ranged controller controls to the entered set-point.If the set-point is increased to above the lower range but still within the higher range then the lower range controller switches off and that the higher range controller switches on and controls to the entered set-point.Controller On – Decreasing Set-point
With the higher ranged controller in Control mode, if a set-point within the range of the higher ranged controller is entered then the higher ranged controller controls to the entered set-point.If the set-point is decreased to within the lower range then the higher range controller will control to this set-point. When the controller is in limits then the range is changed to the lower ranged controller and this then controls to the entered set-point.
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Operation
3.4 Control Mode
In measure mode, press and the instrument changes to control mode.
Press and the instrument stops controlling pressure and changes to measure mode:
Key to display:1 Current measured pressure value (in limits green, out of limits blue).2 In active control mode.
Pressure reading filter ON.Head (pressure) value applied.Control mode with overshoot.Tare enabled.
SUPPLY OUTLET VENT REF+ -
Module 2SUPPLY OUTLET VENT REF
+ -
Module 1
Pressure output
Pressure source
Pressure regulator
Pressure regulator
Rear view of PACE6000 instrument
Control
Measure
1
2
3
4
56
7
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Note:
Controlling to a new Set-point
1. To change the set-point value, touch the set-point area of the screen and the display shows the numeric keys.
2. Set the new set-point value.
3. If necessary, use the key to remove the last digit in the set-point value display.4. To save the new set-point, touch the set-point area of the screen. This returns the
display to the measured pressure screen and showing the new set-point.
5. Touch the escape to leave the numeric setting unchanged.
6. To control pressure to the new set-point value press the key.7. The display shows the pressure value changing as the instrument controls to the new
set-point, at the set rate of change.Note: When changing from measured to controlled mode the displayed pressure digits
change from black (measured pressure) to blue (controlled pressure out of limits) to green (controlled pressure in-limits).
8. If enabled, the effort meter shows the effort the controller exerts to achieve the set-point.
9. The status area can be changed to various displays showing pressure and controller
3 Press to switch between controlled pressure and measured pressure.4 Nudge up.5 Set-point, press and the display changes to numeric keys.6 Nudge down.7 Status area shows effort meter set in global set-up, press to enter control set-up.
Active mode - control active, except in measure mode.
Passive mode - when the controller achieves inlimits condition, measure mode is auto-matically selected.
Gauge mode - when the controller achieves zero gauge inlimits condition, measure mode is automatically selected and the zero valve opens.
Control
[EN] English 3 - 7 K0443 Revision B
Operation
performance.
Effort Meter
Note: In normal controlled pressure conditions the effort meter stays within the band (green). If the status indicator moves outside the band there may be a leak into or out of the system.
Controlling to Ambient/Zero Pressure
1. Use the numeric key display and set the new set-point value to ambient or zero gauge pressure.
2. When the display shows the new set-point value, press the key.3. The display shows the pressure value changing as the instrument controls to the new
set-point, at the set rate of change.
4. When the display shows ambient or zero pressure, press the key to switch off the controller and return to measure mode.
Control
Measure
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Vent
Nudge resolution
Set-point limits
Slew rate
Control mode
Global set-up
Control set-up
Status
Vent set-up
-
Replaced by Go to Ground when in aeronautical option.
Exit set-up.
UpperLowerEnable/disable
Yes/No
- Sets set-point nudge resoultion.1st to 7th digit.-
Linear - Enter units/secondMaximum rateToggle between: fast/no overshoot
Active - Continuous control to set-pointPassive - Controls outside user defined bandGauge - Controls from zero gauge to set-point
see 3.6:-
see 3.9:-
[EN] English 3 - 9 K0443 Revision B
Operation
3.5 Operation and Example ProceduresIntroduction
Before operation, the instrument must be connected to the correct electrical and pneumatic supplies (Ref: Section 2, Installation).Switch the instrument ON, the display shows measured pressure mode (except when regulator mode is selected) and the task set before the power-off.Measure and Control Modes
The instrument operates in the two modes that follow:• Measure mode, the instrument works as a precision pressure indicator and shows the
pressure measured at the output port.• Control mode, the instrument works as a precision pressure controller and shows the
controlled pressure measured at the output port. Pressing Task enables various pre-determined functions:
The display shows the task screen. When selected, e.g. Basic, the screen changes to show the selected task.
Selecting a task exits the menu and changes the display to the task selected.
Exit set-up.
Option refer to 6.8.
Enable
Set-up
Basic
Leak test
Switch test
Test program
Divider
Preset
Task
Start programSet-upStep
Stop
Enable
Set-up
Select program
Enable
Set-up - select a preset and store new values.
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Task
To control pressure in the task do the following:1. Select the required units of pressure measurement from the measure set-up menu.2. Press the status area and enter control set-up.3. Select the required slew rate.Note: The display changes to show the type of slew rate selected.4. Select the required vent slew rate in vent set-up.
CAUTION
USE THE VENT SET-UP TO PREVENT DAMAGE TO RATE-SENSITIVE EQUIPMENT CONNECTED TO THIS CONTROLLER. THE VENT SLEW RATE SETTING IS INDEPENDENT OF THE CONTROLLER SLEW RATE SETTINGS.
5. Return to the task screen. In basic task, use the numeric keys to enter a set-point.6. Press the status area and enter control set-up, select the required slew rate.
7. Press the key to start controlling pressure.8. The screen display changes as follows:
• The current pressure reading changes from black to blue.• If enabled, the effort meter indicates the amount of work done (effort) by the
controller.9. When the controller achieves the selected pressure set-point, the screen display
changes as follows:• The current pressure reading changes from blue to green.• If enabled, the effort meter shows the controller effort to keep the pressure at
the set-point.10. On completion of testing, select control set-up and select Vent to reduce the system
pressure to near atmospheric pressure.Note: This feature should be used to reduce system pressure to a safe value before
disconnecting the Unit Under Test. The vent valve opens and remains open until a key press or receipt of a communications command. Always use the vent function before disconnecting pressure equipment from the output port.
11. Press the key to return to measure mode. The screen display changes as follows:• The current pressure reading changes from blue/green to black.• If enabled, the effort meter indicates the controller at rest.
Control
Measure
[EN] English 3 - 11 K0443 Revision B
Operation
Divider
Select and set-up the divider task by pressing Divider from the task screen. The divider menu specifies high set-point, low set-point and then divides the span into a number of equal test points (min 2, max 25).Divider menu structureSelect required units, Rate, etc. in the set-up menus. When Divider is then entered from the Task menu, these test point pressures and number of test points can be set.By entering control mode, this allows the Divider sequence of test pressures (and controlled at the selected rate).
Divider
High
Low
Number of points
Divider
Divider parameters
Set-point
Set-point
Divide as set-up.
Start control mode.
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Example:High set-point = 2 barLow set-point = 0 barNumber of points = 5Test pressures = 0, 0.5, 1, 1.5 and 2 bar
P = pressure N = Number of points R =range between low set-point (1) and high set-point (5)
* controlled pressure to each set-point
N 32 4 51
*R ÷ 4
R
*
*
*P
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Operation
Preset
The Preset function allows individual set-point values can be defined for each of 25 set-points.The set-up function displays a preset number.Pressing the soft key for that number assigns a pressure value to the key.After setting all the 25 preset pressures, enter control mode.Press a soft key to change to the pressure assigned to that key (and *controlled at the selected rate).
P = pressure T = time
Preset
Preset Preset as set-up
Set-up
Value
P
T
*
-250-150
-500
+50
-250
250
150
100
0
50
-50
-150
-100
-200
200
*
*
*
*
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3.6 Global Set-up SelectionsGlobal set-up selections provide access to the instrument‘s settings for both measure and control modes.The set-up menu that follows provides PIN-protected access to the supervisor set-up and calibration.Pressing Global Set-up from measure or control set-up menu changes the touch-screen display to show the following selections:• Supervisor Set-up• Calibration• Save/Recall User Set-up• Display
1 Selections 2 Escape Key
1
2
Supervisor set-up
Calibration
Global set-up
Save/recall user set-upSave current user set-up
Recall current user set-up
Display- % brightness- Timer (time-out) setting
Resolution - Measure display resolution
Back light
Audio volume - % of full volumeSatus areaDual/single display PACE6000 only
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Operation
Status Area Settings
Enables the user to view an operating condition or parameter of the instrument:
3.7 Barometric Reference OptionIf installed, this option allows absolute or gauge pressure range selection. To obtain absolute pressure the instrument uses a summation of gauge pressure and barometric pressure (measured by the barometric sensor). (Ref: Section 6.8, Options) and the data sheets for the performance of barometric reference and precision of absolute ranges.
Full-scale - pressure in current selected units of the pressure range.Source - positive and negative source pressure values in current selected units.Effort meter - indicates controller effort.In Limits meter - indicates controller in-limits condition and time to in-limits.Module logic I/P - indicates status condition of logic input of control module.Vent and +ve FS - enables vent selection and shows full-scale pressure in current selected units.Zero and +ve FS - enables zero selection and shows full-scale pressure in current selected units.Rate - indicates slew rate set.Barometric - displays barometric pressure.Tare - indicates tare condition and value.Analogue Output - If option installedP1 - P2 - Displays Module1 pressure minus Module2 pressure (P2-P1)
Status area examples
Full-scale
In-Limits meter
Effort meter
Vent and +ve FS
Zero and +ve FS
Barometric
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3.8 Supervisor Set-up
enter four digit code (0268)
Enable/disable
-
-
-
Protective Vent
In Limits
Alarms
Communications
Time out
Restore last settings
Supervisor
More next page:-
PIN
Pressing the escape key stores settings and returns to global set-up.
High source pressureLow source pressureEnable/disable high pressureEnable/disable low pressure
IEEE488RS232USBEthernet
% full-scale
Time period - time to stay in limits before trigger indication
Idle time out - Enable/disable
Gas head correction Enable/disable
Head - in or mLocal gravity - m/s2
Barometric - mbarReference port medium* Test port medium* Temperature (gas)Humidity (gas)
*air or nitrogenPower-up
Normal
Regulator - Power-on set-point
LockLock/unlock individual tasks
Lock/unlock all tasksLock tasks
Change PINEnter new PIN
Re-enter new PINEnter new supervisor PIN
User defined unitsEnter the name of the defined units
Enter the equivalent value in PascalsUser defined units - user unit 1
Instrument alias name
Language
More next page:-
Restore previous defaults Y/N?
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Operation
3.9 Instrument StatusThe control set-up menu provides access to the status of the instrument:
Instrument
Software build
Hardware build
Instrument Status
IEEE488*
Instrument Main CodeInstrument OS BuildInstrument Boot ROMModule (1) Main CodeModule (1) Boot ROMAnalogue O/P Main CodeAnalogue O/P Boot ROMVFC Main CodeVFC Boot ROMModule (2) Main CodeModule (2) Boot ROM
Additions to the standard instrument
Pressing the escape key stores settings and returns to global set-up.
History CalibrationValve correctionZeroSoftwareMessage
CommunicationsRS232*
* current settings, see 6.7
Current set-up ZeroIn LimitsHigh AlarmLow AlarmSlew RatePower Up
Use logOperation time*
Control time*
* days, hours and minutes
PACE5000
Use log
More next page:-
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Software
Software history, in the status menu, provides read only information on the current software in the instrument.
Example
Next page of menu options. Loops from last page to first page.
Exit set-up.
Instrument Main Code
Software history
More next page:-
Analogue O/P Main Code
Instrument OS Build
Instrument Boot ROM
Module (1) Main Code
Module (1) Boot ROM
Analogue O/P Boot ROM
VFC Main Code
VFC Boot ROM
Module (2) Main Code
Module (2) Boot ROM
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4 Maintenance
4.1 IntroductionThis section contains the routine maintenance and procedures to replace components (Ref: Section 5, Testing and Fault Finding) and listed (Ref: Table 4-2).
* may change depends on usage (e.g., rack mounted, bench top) and environment (e.g., humidity, dust). † may change depends on the required accuracy.
4.2 Visual InspectionInspect for obvious signs of damage and dirt on the following:1. External of the instrument.2. Power supply connector and power lead.3. Associated equipment. Damaged parts must be replaced contact GE Service.
4.3 Cleaning
CAUTION
DO NOT USE SOLVENTS FOR CLEANING.
Clean the front panel with a damp lint-free cloth and mild detergent.4.4 Test
Do a standard serviceability test (Ref: Section 5.2, Standard Serviceability Test).
Task Period
Visual Inspection Before use
Cleaning Weekly*
Test Before use
Calibration 12 months †
Pressure Module filters Determined by usage.
Replace Pressure Module Pressure controller operating hours.
Table 4-1 Maintenance Tasks
[EN] English 4 - 1 K0443 Revision B
Maintenance
4.5 CalibrationThe instrument should be returned to the manufacturer or calibration facility, (Ref: Section 6.12, Return Goods/Material Procedure).To find the date of the last calibration, press Measure set-up/Status/Calibration history.
4.6 Replacement PartsUse only the replacement parts listed (Ref: Table 4-2).
WARNINGS
TURN OFF THE SOURCE PRESSURE AND CAREFULLY VENT THE PRESSURE LINES BEFORE DISCONNECTING THE PRESSURE LINES FOR MAINTENANCE. PROCEED WITH CARE.
ISOLATE THE INSTRUMENT POWER SUPPLIES BEFORE REPLACING PARTS, WITH POWER APPLIED THE INSTRUMENT CONTAINS LETHAL VOLTAGES.
† refer to data sheet
Fuse Replacement (Ref: Figure 4-1)
(Ref: Section 5, Testing and Fault Finding) when to replace the fuse.Remove fuse1. Set the power switch to OFF (if not rack-mounted got to step 3).2. For access to rack-mounted instruments, the following actions maybe required:
a. Partially or completely withdraw the instrument.b. Isolate pneumatic supplies.c. De-pressurise all pressure supply inlet and output lines.
3. Isolate the power supply to the instrument and disconnect the IEC power supply connector (1).
4. Remove the fuse carrier (2) from the power supply input socket assembly.5. Remove the fuse cartridge (3).
Part number Description
- Fuse T2AH250V (PACE5000)
- Fuse T5AH250V (PACE6000)
IO-FILTER-KIT Kit, filter
CMX-XXXX † Module, pressure control
Table 4-2 Replacement Parts List
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Replace fuse1. Check for the correct type of fuse (Ref: Table 4-2).2. Replace the fuse.3. Refit the fuse carrier (2) in the power supply inlet socket assembly.4. Refit and reconnect rack-mounted units (Ref: Section 2, Installation).5. Switch on the power supply and set the power supply switch to ON.6. If the fuse blows immediately with power-on, contact the manufacturer or Service
Agent.
Figure 4-1 Fuse Replacement1 - IEC connector 2 - Fuse carrier 3 - Fuse
3
2
1
[EN] English 4 - 3 K0443 Revision B
Maintenance
Filter Replacement (Ref: Figure 4-2)
Remove filter1. Set the power switch to OFF (if not rack-mounted got to step 3).2. For access to rack-mounted instruments, completely withdraw the instrument from
the rack.3. Depressurize the system and isolate the pneumatic supplies.4. Set to off and then disconnect the electrical power supply.5. Disconnect the pneumatic pipes to the pressure module.6. Release the four cross-head screws (drive size 2) securing the pressure module in the
instrument case.7. Remove the pressure module to access to the filters.8. Use a 5 mm hexagonal key, to release the filter retainer (1).9. Remove the five filters (2), if necessary, invert the pressure module to aid removal.
Figure 4-2 Pressure module filters
Replace filter1. Insert a new filter in each of the pressure connection.2. Use a 5 mm hexagonal key, to secure each filter retainer (Do not over tighten).3. (Ref: Section 2, Installation).
1 - Retainer 2 - Filter
21
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Pressure Module Replacement (Ref: Figure 4-3)
WARNING
TURN OFF THE SOURCE PRESSURE AND VENT THE PRESSURE LINES BEFORE DISCONNECTING OR CONNECTING THE PRESSURE LINES. PROCEED WITH CARE.
Figure 4-3 Pressure module
Remove pressure module1. (Ref: Section 2, Installation).2. Fit the blanking plate (supplied) to protect the internal components.
Replace pressure module1. Fit a fully compatible pressure module (1) into the instrument case (2).2. (Ref: Section 2, Installation).
1 - Pressure module 2 - Instrument case 3 - Blanking plate
21
3
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5 Testing and Fault Finding
5.1 IntroductionThis section details the standard serviceability test. (Ref: Table 5-1) for possible faults, and the response.The PACE instrument contains a self-test and diagnosis system that continuously monitors the performance of the unit. At power-up, the system performs a self-test.
5.2 Standard Serviceability TestThe following procedure shows if the unit is serviceable and checks functions and facilities of the PACE instrument.Procedure1. Connect the instrument (Ref: Section 2, Installation)2. Connect a pressure measurement device to the output port.3. After power-up, select measure set-up.
a. Select the required units of pressure measurement from the measure set-up menu.
b. Press the status area to enter control set-up.c. Select the effort meter.d. Select the required control slew rate and vent rate.e. Press set-point and, using the numeric keys, set a value within the pressure
range of the instrument.f. Check the screen display shows the following:
• Selected units of pressure measurement• Selected type of slew rate• Set-point
g. Press the key to start4. The screen display changes as follows:
a. The measured pressure digits change from black to blue and indicates the pressure value changing towards the set-point.
b. If enabled, the effort meter indicates the work effort of the controller.5. When the controller achieves the selected pressure set-point, the screen display
changes as follows:a. The colour of the displayed pressure value changes from blue to green
indicating that the controller is within the in-limits tolerance.b. If enabled, the effort meter shows the controller effort to keep the pressure at
the set-point.c. Check the pressure measurement device indicates the approximate pressures
generated by the PACE controller.6. Select vent and the pressure reduces to atmospheric pressure at a controlled rate
(vent rate).7. The test is completed when the controller is at atmospheric pressure.
Control
[EN] English 5 - 1 K0443 Revision B
Testing and Fault Finding
Note:• The vent valve opens and remains open until OK is pressed.• Always use the vent function before disconnecting pressure equipment from the out-
put port.• The instrument automatically returns to measure mode.• The colour of the displayed pressure value changes to black.
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5.3 Fault FindingCheck the faults and responses (Ref: Table 5-1) before contacting www.gemeasurement.com or a GE recommended Service Agent
Fault Response
Power supply connected, display not lit.Check rear panel switch set to on.Check fuse and, if necessary, replaceCheck electrical power supply fuse or circuit breaker.
24 V DC output intermittent.Over-load internal self-resetting fuse operating.Reduce load current to specified value.
Instruments functions, but does not reach all set-points.
Check pneumatic supplies for correct pressures.Check system for leaks.
In measure mode with output port sealed, the pressure continues to increase or decrease.
Increasing pressure, leaking Apply control valve.Decreasing pressure, leaking Release control valve.Confirm by isolating pressure supplies.Contact GE approved service agent.
Display pressure reading in red Over-range, use vent de-pressurize or vent manually.
Instrument enters measure mode without user request or command.
Idle time-out enabled but timeout period setting too short.
Instrument will not zero.Blocked vent port.Check for blockage.Contact approved service agent for repair.
Instrument controlling to set-point, no pneu-matic output
Blocked isolation valve.Contact approved service agent for repair.
Erratic or inaccurate zeroLeaking isolation valve.Reference port restrictor not fitted.Contact approved service agent for repair.
Increased gas consumption.Unstable control at set-point or does not achieve set-point.
System leak.Carry out leak test.Contact approved service agent for repair.Reference port restrictor not fitted.
If the controlled pressure stays within the toler-ance band and the pressure at the output is within limits. If the controller status indicator is outside the tolerance band,
Leak in the system or the supply pressure differs from the pressure for which the control valves have been charac-terised.
Table 5-1 Fault Diagnosis
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Testing and Fault Finding
5.4 Approved Service AgentsFor the list of service centres logon to www.gemeasurement.com
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PACE Pressure Controller User Manual
6 Reference and Specification
6.1 Installation NotesThe PACE instrument pressure controller/calibrator requires an independent pressure supply and set of connections. The exception is the reference connection, this provides a reference to atmosphere for gauge sensors and barometric sensors.The instrument must have the correct supply pressure and a suitable supply medium. Refer to data sheet specification.The type and density of the supply gas does not affect the accuracy of pressure measurement, assuming that the Unit Under Test (UUT) is at the same height as the controller or gas head correction is accurately set.Gas Supply
For normal operation the instrument requires a positive supply of at least 110% of range but less than the MWP, with a gas regulator.For absolute operation, negative gauge operation or, if the installation requires a fast response around atmospheric pressure, a vacuum source must be connected to the negative supply. For recommended configurations (Ref: Figure 2-4), (Ref: Figure 2-5) & (Ref: Figure 2-6).To achieve control performance the source pressure must be maintained at 10% full-scale above the required set-point.Controller performance is maintained during slow variations in source pressure down to a source pressure of 20% full-scale range.Supply Conditioning Equipment
Supplies should be provided with an isolation valve and any other necessary conditioning equipment.Note: To protect the control module, for ranges
above 100 bar, from over-pressure a suitable protection device (such as a relief valve or bursting disc) must be fitted to limit the applied supply pressure to below the MWP.
Maximum Working Pressure
If the measured +ve source pressure exceeds the limits below then display a persistent message box as shown.Clear this message by selecting “OK”.Supply Contamination
Supplies may need the removal of water, oil or particulate contamination. Any water in the compressed gas supply will be in vapour form, i.e. non-condensing and must be removed
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using a mist filter.Oil must be completely removed as this causes a rapid deterioration of the control valve performance.The compressed gas supply must not contain particulates and must be removed using a particulate filter. Do not use a compressed gas supply containing corrosive material.Systems without a Negative Supply
Without a negative supply (vacuum pump), release the positive pressure from the system to atmosphere through the negative supply port.The release from the negative port must be piped away to where the discharge causes no disturbance or hazard. A diffuser may be fitted to the negative supply port to diffuse air flow. The need for a Negative Supply (for Optimum Performance)
GeneralSupply pressures (at least 110% of range but less than the MWP) there must be a difference of 10% of full-scale between the supply pressure and the maximum output pressure. When operating at positive or negative full-scale, there must be a pressure difference between supply and output to cause a gas flow.Operating near atmospheric pressure or belowAny controller operating near atmospheric pressure or below requires a vacuum pump or other negative supply connected to the negative supply port for optimum performance. Without a vacuum supply, as the output pressure approaches atmospheric pressure, the differential pressure approaches zero resulting in a reduced flow to the output.Reduced flow causes an increase in the time to control to atmosphere, especially with large user volumes, and an increased overshoot at low pressures, (Ref: Figure 2-4), (Ref: Figure 2-5) & (Ref: Figure 2-6).Vacuum PumpEach PACE Control Module has a vacuum sensor. Connect a vacuum pump to the -ve supply port. The higher the flow rate of the vacuum pump the better the PACE control performance. Low pressure ranges <700mbar require vacuum regulation or the use of the negative gauge pressure generator IO-NEG-G-GEN-1 option.Conclusion
Use a vacuum supply for: A vacuum supply improves:
Absolute ranges.Time to reduce system pressure at pressures below 2 bar (30 psi), full-scale.
Negative gauge ranges. Control stability near atmospheric pressure.Overshoot at low pressures.To improve performance at or near gauge zero.
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Values of air density (kg m-3) for air of relative humidity 50% and containing 0.04% carbon dioxide by volume.
Note: 100 kPa = 1 bar
Airpressure Air temperature (°C)
(kPa) 14 16 18 20 22 24 26
87 1.052 1.045 1.037 1.029 1.021 1.014 1,006
88 1.064 1.057 1.049 1.041 1.033 1.025 1.018
89 1.077 1.069 1.061 1.053 1.045 1.037 1.029
90 1.089 1.081 1.073 1.065 1.057 1.049 1.041
91 1.101 1.093 1.085 1.077 1.069 1.061 1.053
92 1.113 1.105 1.097 1.089 1.080 1.072 1.064
93 1.125 1.117 1.109 1.100 1.092 1.084 1.076
94 1.137 1.129 1.121 1.112 1.104 1.096 1.088
95 1.149 1.141 1.133 1.124 1.116 1.108 1.099
96 1.162 1.153 1.145 1.136 1.128 1.119 1.111
97 1.174 1.165 1.156 1.148 1.139 1.131 1.123
98 1.186 1.177 1.168 1.160 1.151 1.143 1.134
99 1.198 1.189 1.180 1.172 1.163 1.154 1.146
100 1.210 1.201 1.192 1.184 1.175 1.166 1.158
101 1.222 1.213 1.204 1.196 1.187 1.178 1.169
102 1.234 1.225 1.216 1.207 1.199 1.190 1.181
103 1.247 1.237 1.228 1.219 1.210 1.201 1.193
104 1.259 1.249 1.240 1.231 1.222 1.213 1.204
105 1.271 1.261 1.252 1.243 1.234 1.225 1.216
106 1.283 1.274 1.264 1.255 1.246 1.237 1.228
Table 6-1 Air Density Values
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6.2 Operational Requirements
CAUTION
A CONTAMINATED UUT MUST HAVE ADDITIONAL IN-LINE FILTERS CONNECTED BETWEEN THE OUTPUT PORT AND THE UUT TO PREVENT CONTAMINATION OF THE INSTRUMENT.
Negative or Vacuum Supply
The negative supply for absolute control does not need to be regulated. Any variation between this and absolute zero will affect instrument operation if controlling at low absolute pressures.Oil Contamination
Precautions must be taken against oil transfer to the instrument.Recommended1. A normally-open venting solenoid connected to atmosphere and the pump. When the
pump supply is switched off, the valve opens allowing atmospheric pressure to enter the pump directly rather than through the pipe to the instrument.
2. If the above is not done, oil may progressively move up the supply pipe and into the instrument.
Pump Performance
Recommended for ranges above 2 bar (30 psi) gauge, positive full-scale1. When installing a vacuum supply protect the vacuum pump against the discharge of
positive pressure by the controller into the vacuum pump. This may result in reducing vacuum pump performance.
2. Use a check valve in the negative supply to vent excess pressure to atmosphere if the vacuum pressure rises above atmospheric pressure. The check valve should be installed on the instrument side of a volume which is approximately equal to the system volume. The volume slows any rapid pressure rise giving the vacuum pump time to reduce the pressure.
Note: A wide bore vacuum pipe can have enough volume and, used with a check valve, could provide the necessary overpressure protection.
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Venting
Either a zero or vent operation uses the vent port.VentThe system gas at the output pressure can be released from the vent port. Unrestricted gas flow occurs in this operation.RecommendedUse a controlled method to reduce the system pressure, at a controlled rate, to near atmospheric pressure then select vent.ZeroDuring a zero operation only the internal volume of the instrument vents to atmosphere.RecommendedDo not obstruct the vent port. To diffuse gas exhaust, a diffuser may be fitted to the vent port.Output Port
The output port provides the controlled test pressure to the UUT.Reference Port
The reference port provides the negative pressure to the gauge sensor and to the barometric reference (option). Gauge sensors use this port identified as “REF”. For gauge sensors (without a barometric reference) small pressures can be applied. Refer to MWP stated on the rear panel of the control module. All other pressure measurement requires the port to be opened to atmosphere.When in gauge mode, the instrument shows and controls the pressure difference between the reference port and the output port.Note: This is not a true differential operation as there is no true differential calibration of the
sensor.The transducer of the barometric reference option senses atmospheric pressure through the reference port, when enabled the port must be open to atmosphere.The reference connection should be used (differential connection option) for precision low pressure measurement. The instrument controls pressure relative to the pressure at the reference port. An atmospheric pressure change causes the controller to adjust the pressure and appears at the pressure output as apparent instability. To keep a stable controlled pressure, the reference port should be restricted. Using a reference port restrictor, short term ambient pressure variations can be prevented from affecting controller performance.The controller and UUT references should be connected together (using the optional differential connection kit) to provide a common reference to atmosphere.
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6.3 IconsIcon Function Icon Function Icon Function
Active Aero mode Airspeed range
Alarm Altitude range Area of use
Asterisk Auto range Audio volume
Auto zero Backlight Calibration
Calibration his-tory
Change super-visor PIN
Communica-tions
Contrast Control mode
CopyCorrection ana-logue output
Correction SCM
Correction sen-sor
Correction source sensor
Correction valve
Current set-up Date & time Delete
Diagnostic ana-logue output
Diagnostic bar-ometric option
Diagnostic con-trol sensor
Diagnostic con-troller
Diagnostic gen-eral
Diagnostic RS232
Diagnostic source sensor
Diagnostic vac-uum sensor
Diagnostic volt-free
Diagnostics Display
Divider Error Escape
Table 6-2 Display Icons in Set-up Menus
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Exclamation Fault historyGas head pres-sure
Gauge mode Global set-up Go-to-ground
Hardware build Home Idle time-out
IEEE488 Information In limits
InstrumentInstrument accuracy
Instrument alias name
Language Leak test Lock
Lock tasks Logic output Max-min
Max peak Min peak Nudge
Passive mode Percentage PIN
Power-up Preset Pressure
Pressure filter Process Protective vent
Question RangeRecall user set-up
Reset use log Resolution Re-try
Roughing RS232Restore to as shipped set-tings
Icon Function Icon Function Icon Function
Table 6-2 Display Icons in Set-up Menus
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Restore set-tings 2
Run Save as shipped
Save recall user set-up settings
Save user set-up
Screen mode
Screen saver SCM filter SCM zero
Select rangeSet-point disa-ble/enable
Set-point limits
Set-point higher limit
Set-point lower limit
Set date
Set serial num-ber
Set time Set-up zero
Slew rate linearSlew rate max rate
Software build
Software upgrade history
Software upgrade
Status
Status area Step (single) Stop
Supervisor set-up
Switch test Tare
Task Test programTest program copy
Test program delete
Timing Time out
Timed zero UnitsUser defined units
Use log Use log history Vent
Icon Function Icon Function Icon Function
Table 6-2 Display Icons in Set-up Menus
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6.4 Measure Set-upPressure Zero
During use, the instrument pressure sensor can show small zero shifts caused by time and temperature changes. Regular “zeroing” increases measuring precision.Process
Selects display processing features that change the reading, as follows:
Task
Selecting Task enables a set of pre-determined functions and software enabled optional functions.Units
Select the new units from the list of pressure measurement units. Special units can also be defined (Ref: Section 6.7, Supervisor Set-up).Global set-up
(Ref: Section 6.6, Global Set-up).Set-up Zero
Vent time out Vent Yes/No Vent set-up
WarningZero analogue output
Zero history
Zero
%:Pressure can be expressed as a percentage of full-scale or as a percentage of a specified span.
Filter:The reading can be filtered by a custom low pass filter or the filter can be disabled (default disabled). The controller works at a speed independent of the filter time constant.
Tare:A specific tare value can be selected or the current displayed pressure reading can be “captured” as the tare value. The display shows the selected tare value in the pressure window.
Mode = off/auto/timedInterval = 00.00.00Isolation status = isolated/non-isolated.
Icon Function Icon Function Icon Function
Table 6-2 Display Icons in Set-up Menus
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6.5 Control Set-upVent
Select Vent to reduce the system pressure to near atmospheric pressure. Use this feature to reduce system pressure to a safe value before disconnecting the UUT. Use vent set-up to adjust the slew rate of venting.Note: The vent key can be selected in the control set-up menu or programmed as an on-
screen selection in the status area from the global set-up/ display/status area menu.Nudge
Sets the incremental resolution of the nudge control for trimming the set-point digits.Set-point Limits
Defines the limits of pressure that can be entered as a set-point (used for protecting sensitive UUT).Slew Rate
Sets how the controller achieves a set-point.
Control Mode
Selects one of the three modes that follow:Active ControlIn this mode, the controller continuously maintains the set-point, compensating for small pressure leaks and thermal affects.Passive ControlIn this mode, the user can define a band either side of the set-point, the default band equals to the instrument’s precision. When the controlled pressure enters this band, the controller automatically shuts-off. If the measured pressure exits the band, the controller automatically re-establishes the pressure, without instability, the controlled pressure re-enters the band.Note: If passive mode is in use with a leak free and thermally stable system then the control
stability contribution can be discounted from the uncertainty calculation.Zero Gauge ControlThe controller switches off once stable at zero gauge and the zero valve opened. Entering a new set-point causes the zero valve to close and the controller starts to control to the new set-point.
Max Rate Setpoint step changes to new setpointLinear: Controller changing pressure linearly to set-point at a rate set by user.Rate: Either maximum rate or at a rate (value) set by user.Overshoot: Fast changing pressure may go beyond set-point.No overshoot: Changing pressure at an exponential rate but remaining within limits.Note: This function should be used for UUT that have hysteresis errors.
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Global Set-up
PIN protected menu (Ref: Section 6.7, Supervisor Set-up).Status
The display shows the following:a. Instrument
• Module 1 (Module 2 if fitted)• Control sensor• +ve source sensor• -ve source sensor• Barometric sensor (Optional)
b. Software build - read only datac. Hardware build - read only datad. History - read only datae. Communicationsf. Current set-up - read only datag. Use log - read only datah. Software options - read only datai. Summary - read only data.
Vent Set-up
Use the vent set-up to prevent damage to rate-sensitive equipment connected to this controller. The vent slew rate setting is independent of the controller slew rate settings.
6.6 Global Set-upSupervisor Set-up
PIN protected menu (Ref: Section 6.7, Supervisor Set-up).Calibration
PIN protected menu.Save/Recall User Set-up
Save user set-upRecall user set-upDisplay
ResolutionBacklightAudio volumeStatus areaScreen mode (PACE 6000 only)
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6.7 Supervisor Set-upThe Supervisor menu provides facilities for programming settings. These are made during installation as follows:Note: A PIN protects the Supervisor menu against unauthorised use. Each instrument on
delivery contains the factory set PIN (0268). To continue protecting the supervisor set-up menu the PIN should be changed as soon as possible.
Protective Vent
The protective vent can be enabled or disabled and causes the discharge of pressure at a controlled rate if the measured pressure exceeds 110% full-scale. This protects the pressure sensor from over-range.The Power-up trapped pressure vent can be enabled or disabled from the protective vent menu.In Limits
A tolerance value can be set at the set-point. When the controller achieves the set-point, the instrument controls within this set tolerance value. It does not affect controller stability or precision. The instrument uses the ‘in limits’ flag when performing a control task such as Leak Test or Switch Test.Note: In remote control, the control computer can be used to interrogate the ‘in limits’
register to confirm the controller has achieved set-point.Alarms
An alarm can be set to trigger when the pressure exceeds the high alarm or falls below the low alarm. A buzzer sounds when the alarm triggers and the alarm symbol (bell) appears on the display.Comms
Selects a communication port parameter. Simultaneous operation of both the RS232 and the IEEE 488 interfaces is fitted as standard.The user can select appropriate settings for communicating with the control computer (PC) and the required command protocol. Refer to K0472, SCPI Remote Communications Manual or K0469 Heritage Communications Manual.
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RS232Located on the rear panel an external RS232 connection requires the following:
IEEE 488Located on the rear panel an external IEEE 488 connection requires: the following:
EthernetLocated on the rear panel an external Ethernet connection requires the following:
Connector 9-way ‘D’ female wired as per Table 2-1Communications RS232 point-to-point only
(DPI 520 daisy chain is not supported)Baud Rate power-up default 9600, no parity & handshake = xon/xoffBaud rates selectable ** 2400, 4800, 9600, 19k2, 38k4, 57k6 & 115k2Parity None, Odd & EvenFlow control None, Hardware & xon/xoffProtocols † SCPI, DPI 500, DPI 510, DPI 515, DPI 520New data up-date rate refer to data sheetBuilt-in EMC Filtering and Transient voltage protection** Selectable through the user interface † Not all protocols available on all models.
Connector 24-way ‘D’ female wired as IEEE 488 standardCommunications IEEE 488 GPIBDefault Address 16Protocols † SCPI, DPI 500, DPI 510, DPI 515, DPI 520New data up-date rate refer to data sheetBuilt-in EMC filtering and transient voltage protection.† Not all protocols available on all models.
Connector Ethernet RJ45Protocol SCPITerminator CR/LFDefault Address Auto IP (0.0.0.0)Host name PACExxxxxx (where xxxxxx = serial number)Web Password 0268Access control OpenReset LAN Settings Selected in Supervisor set-up menu
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Ethernet FirewallA firewall protects the Ethernet connection. The firewall is always turned on. The following ports are unfiltered to allow remote communication and control.
Ethernet Parameters Range Setup1. Touch any of the three horizontal Measure touch pads on the home screen to open the
CONTROL SET UP screen2. On the CONTROL SETUP screen, select GLOBAL SETUP.
Port Description80/tcp http (Web server)111/tcp rpcbind (RPC for VXI)111/udp rpcbind (RPC for VXI)443/tcp https (Web server)5025/tcp SCPI socket*****/tcp VXI-11 communication (dynamic port allocated)
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3. Select SUPERVISOR SET UP.
4. Enter the Supervisor PIN and press ENTER SUPERVISOR PIN. Use the back arrow in the top right corner of the screen to delete any incorrect data entries.
Note: The factory set Supervisor PIN is 0268. If the Supervisor PIN has been locally changed, make sure that the new PIN is kept in a safe place. If the new PIN is lost, it can only be reset at a GE Service Centre.
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5. Press COMMUNICATIONS STATUS to open the COMMUNICATIONS STATUS screen.
6. Select ETHERNET to open the ETHERNET PARAMETER screen.
7. To change the ADDRESS parameter, complete the following:a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows to highlight
the ADDRESS field.b. Press the top touch pad on the screen to enter the ADDRESS TYPE screen.
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c. Use the UP and Down arrows to highlight the desired address type (either AUTO IP or STATIC).
d. Press the top touch pad on the screen to set the new address type. The screen automatically returns to the ETHERNET PARAMETERS screen.
8. To change the host name, complete the following:a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows on the right
of the screen to highlight the HOST NAME field.
b. Press the top touch pad on the screen to enter the HOST NAME screen.c. Use the keyboard to input the new host name and then press the top button on
the screen to set the host name. The screen automatically returns to the ETHERNET PARAMETERS screen.
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9. To change the web password, complete the following:a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows on the right
of the screen to highlight the WEB PASWORD field.
b. Press the top touch pad on the screen to enter the WEB PASSWORD screen. The keyboard screen opens.
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c. Use the keyboard to input the new web password and then press the top touch area on the screen to set the new password. The screen automatically returns to the ETHERNET PARAMETERS screen.
10. To reset the LAN settings, complete the following:a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows on the right
of the screen to highlight the RESET LAN SETTINGS field.b. Press the RESET THE LAN SETTINGS touch pad on the top touch pad of the
screen.c. The RESET LAN SETTINGS sub-screen asking for confirmation of the reset. Press
YES to confirm reset of the LAN settings.
11. To turn the LAN status indicator on or off, complete the following:a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows on the right
of the screen to highlight the SHOW LAN STATUS field.
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USBLocated on the rear panel a USB connection requires the following:
Communications mode is selected for serial communications using the SCPI protocol.Mass storage device is selected to mount an external USB ‘A’ connected mass storage device or the internal memory SD card, from a PC connected to the USB ‘B’ port.External USB device has priority masking the internal memory SD card.Note: When upgrading software make sure USB ‘B’ connection is disconnected.
Timeout
Presets the times for automatically changing from control to measure mode.Note: Controller timeouts can save supply gas, extending control valve life and minimising
acoustic noise.
Connector USB ‘B’Protocol SCPITerminator CR, LR or CR/LF
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Idle Timeout
Starts when the controller achieves the set-point after the set time, if new set-points are not entered the timer will time-out and return to measure mode.Gas Head Correction
Corrects pressure output for the height difference between instrument and UUT:• For UUT positioned higher than the reference level of the PACE instrument enter a pos-
itive height correction.• For UUT positioned lower than the reference level of the PACE instrument enter a neg-
ative height correction.• When calibrating the PACE instrument disable the gas head correction and correct the
actual applied pressures for height.Power Up
With Normal mode selected, the instrument powers up in Measure mode.With regulator mode selected, the instrument powers-up in Control mode at a pre-selected set-point value.Note: When using regulator mode, disable the Idle Timeout feature.Lock Tasks
Individual tasks:Allows any combination of individual tasks to be disabled.Note: Restricts operation of the instrument to specific tasks or functions, use for production
procedures.All:Disables all tasks.Change PIN
Changes the Supervisor PIN: enter the existing PIN, then the new PIN and confirmation of the new PIN.Note: Confirmation of the new PIN permanently replaces the old PIN. Record this new PIN
and keep in a safe place. If new PIN is lost it can only be reset by returning the instrument to a GE service centre.
User Defined Units
Permits the user to define a set of pressure conversion units. Following the on-screen prompts special units may be set by selecting a Pascal multiplier and assigning a five character name.Instrument Alias Name
Permits the user to define a 20 character alias name for the instrument. The instrument
Reference Level
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returns this name through the communications interfaces.Language
Operation in any of the following languages can be selected:• English (default)• French• German• Italian• Portuguese• Spanish• Russian• Chinese• JapaneseMore languages can be added.
Adding a Language
Languages can be added as follows (Ref: Figure 6-1)1. Create a language file by translating from the English language file.2. Check the pixel width of each translated word by using the PACE language check file,
(download from GE Support Central PACE).3. Create an empty DPI folder on a USB stick.4. Create an empty “LANGUAGES” sub-folder.5. The language file naming conventions is “Language<<language name>>.lng”.6. Save the language file into the languages sub-folder.7. Use the PACE instrument software upgrade procedure to upload the language file
from the USB stick into the PACE instrument.Note: An English and French language file name would be: LanguageEnglish.lng and
LanguageFrench.lng. Language files named “Language.lng” or in any other format will be ignored by PACE.
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Figure 6-1 Language Setting
Restore as Shipped Settings
Restores instrument settings to factory default, but does not affect PIN settings.
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6.8 OptionsOption Enable Process
To enable soft options on a PACE instrument, use the following: 1. Touch the top Measure area of the
screen.2. Select Global Setup.3. Select Calibration.4. Enter a Calibration PIN 1234.5. Enter new option key xxxxxxxxxx (10
digits).6. After entry of this key PACE confirms
the options have been enabled.
Options in the Task Menu
The following software enabled options can be selected from the task menu:
Serial number
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Leak Test Option
This task applies one or two test pressures to either an external system to find any leaks in a system connected to the instrument or an internal leak check. This task sets the test pressure, control dwell time at the test pressure and the leak test time (measure dwell time).
Note: If only one test pressure is required set TP1 = TP2.At the start of the test, the instrument applies a test pressure to the user system.A control dwell time allows the user system to thermally stabilise. The instrument changes to measured mode and then records the pressure change during measure dwell time. On completion, the display shows the leak rate results with leak rates per second or per minute in the current pressure units selected in measure set-up.
lk = leak P = pressure T = Time (second) TP = test pressure
Example set-up parameter
Example leak rate results
Start
Test pressure 1
Leak test
Set-up
Test pressure 2
Edit pressure
Control dwell time
Measure dwell time
Leak rate/second
/minute
T
P
TP 1
TP 2
Control Dwell
Measure Dwell
Control Dwell
Measure Dwell
End Pressure
0
lk
lk
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Switch Test Option
This function automates the testing of pressure switch devices. Connect the pressure port of the switch to be tested to the output port. Connect the switch contacts in series with the 24V dc output and the Logic Input.
.
Figure 6-2 Example Switch Test Connections
Note: The volt-free logic input connections require a switching potential (24V max) to be applied. If necessary, this can be an external d.c. source. Common mode must be kept within 30V maximum.
Example of setting a parameter
Switch test
Switch test
Stop
Release pressure
Switch Test Parameter Selection
Start
SUPPLY OUTLET VENT REF+ -
Pressure Module
Pressure Switch
+24V
-0V
DC OutputLogic input(24V max)
PACE
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StartControls pressure at a fast slew rate to a set-point just below expected switch operating point. De-bounce time can be increased for slower test slew rates.TestControls pressure between two set-points and can repeat (loop). Auto-reverse can be selected.EndControls pressure to a safe condition to disconnect switch under test.ProcedureSelect the switch test parameters in the switch test menu, including the start pressure, end pressure and test rate of change. Slower rates give more accurate results. The de-bounce time can be set between 0 and 200 ms.After the test, the display shows the pressures at which the contacts open and close and the switch hysteresis (the difference between the two switching pressures).Before disconnecting the switch under test, press Release pressure to release any residual pressure.Note: This switch test procedure can be repeated to “exercise” the switch unit.Logic input is opto-isolated. An external supply (5V to 24V dc) can be used provided its’ common mode voltage remains with 30V max with respect to chassis. 30Vmax
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Test Program Option
The test program task provides a facility for writing and executing test procedures. Selecting a test program from the Task menu displays all the task programs currently stored, together with the ability to write new ones.
Run
Test program
<...new...>File name
Stop
Start
Single step
Copy
Delete
Edit
Select a testprogram from list
Start/Stop Test Program Create/Edit
Copy
Delete
Exit
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Creating a test program1. Select the Test Program Create/Edit key.2. Select New.3. To enter a name for the program do the following:
a. Use the text editor keys to create the Test program name.b. Press enter on completion.
Note: A new test always contains a START and END command (first and last line instructions), these lines cannot be deleted.
Editing an existing test program1. Select the Test Program Create/Edit key.2. Select the test program by name.3. The display shows the test program to the left and available commands, that can be
inserted, to the right.4. To delete a command within a test program, select the command using the up/down
arrow keys and then press the delete key.5. To edit a command parameter within a test program, select the command using the
up/down arrow keys and then press edit.6. To save a created or edited test program, select the exit key, then select “Yes” to save
and exit. “No” will exit the test program without saving any changes. “Cancel” will return you to the test program edit screen.
Running a test program1. Select the Test Program Create/Edit key.2. Select the test program listed on the screen then press Exit.3. To start a test program, press Start.4. When the program starts, a stop legend replaces the run legend.5. Press the stop key at any time to stop the test program.Copying a test programThis function allows you to make a copy of an existing Test program file to this instrument and rename it, copy files to a USB memory device and copy files from a USB memory device.1. Press the Copy function button. Three options become available.2. Select the desired option and follow the on-screen prompts.
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Command Description
Beep Sounds a beep (on/off).
BreakBreaks to this point when stop count command or STOP icon is selected, then executes the code from the break statement to the end statement.
Control Selects Control mode.Count 1 Counter 1 - Used in a loop to count the number of loop cycles. (Legacy count).Count 2 Counter 2 - Used in a loop to count the number of loop cycles.Dwell Specifies dwell time (seconds) within the test program.GOTO Used to set-up a loop. Enter program line number to go to.If If statement allows for a decision. For instance, if count 1 = 5 then GOTO xxIn Limits In Limits band setting (% full-scale).
In Limits TimerWaits, within In Limits for this time period, before setting a valid In Limits condition and continu-ing the Test program sequence.
I/P Logic Specifies change of state for external contacts as a halt condition.Isolation Valve Control of output isolation valve: Isolated (closed) or Non-isolated (open).Measure Selects Measure mode.Pause Causes test program to pause and wait for user input (Resume).Range Specifies instrument range. Test program can only run within one control module.Rate Max Sets controller rate to maximum.Rate Value Specifies controller linear rate entered., per minute or secondResolution Sets display resolution.Set Count 1 Sets the counter 1 internal value.Set Count 2 Sets the counter 2 internal value.Setpoint Allows set-point to be entered.Settling Fast Used to specify controller fastest response, may overshoot.Settling No Over-shoot
Used to specify controller response without overshoot.
Stop CountUsed to stop loop program after a number of loops. (Legacy support only, not recommended for use if count 1 and count 2 are listed).
Text Sets screen message.Units Selects required display units.Vent Instructs the module to vent.
VFC OffSets VFC allocation test program off. (Legacy support only, not recommended for use if select VFC relay command is present).
VFC OnSets VFC allocation test program on. (Legacy support only, not recommended for use if select VFC relay command is present).
Select VFC RelayAllows control of VFC 1: R1
R2R3
When VFC is set to Test program under VFC setup.Allows control of VFC 2:
Wait In Limits Waits until pressure is within the limits.Zero Output zeroed
Table 6-3 Test Program Commands
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PACE Pressure Controller User Manual
When selected, certain commands require a value or selection to be set (e.g.) RANGE, RATE, TEXT the display shows a screen prompt for the appropriate setting.
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Reference and Specification
Example ProgramNote: Changes to instrument settings made in a test program remain valid only for the test
program.The instrument reverts to the pre-test settings on exit to another task.
Step Command Argument Action1 START Program start2 UNITS mbar Select units, mbar3 RATE 100 Select rate, 100 mbar/min4 IN LIMITS TIME 10 (00:00:10) secs5 IN LIMITS Set In Limits Band6 RESOLUTION 5 Display resolution, 5 digits7 SETTLING No overshoot8 TEXT Operator instruction, e.g.”Connect UUT”9 ZERO10 SET POINT 400 Set-point, 400 mbar11 CONTROL Controller ON12 WAIT IN LIMITS Wait for In Limits Condition13 BEEP Beep on, approx. 1 sec, Beep off14 MEASURE Switch to Measure (controller off)15 DWELL 30 Wait for 30 sec (00:00:30) 16 SET POINT 800 Set-point, 800 mbar17 CONTROL Controller on18 WAIT IN LIMITS Wait for In Limits Condition19 BEEP ON Beep on, approx. 1sec, Beep off20 MEASURE Switch to Measure (controller off)21 TEXT Operator instruction, e.g. (Wait for beep, record pressure)22 DWELL 30 Wait for 30 sec23 BEEP Beep on, approx. 1 sec, Beep off24 TEXT Operator instruction, e.g. “Min pressure allowed 785 mbar”25 PAUSE WAIT, (for operator input to touch single step)26 VENT Vent27 END Program end
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Programming LoopsTo program a loop, use the GOTO command.Include the COUNT command in the loop for counting the number of loop cycles.Note: The test program commands do not include tests for conditional jumps.To stop a test program from looping, STOP must be selected by the operator.Example of programming a loop
Step Command Argument Action1 START Program start2 UNITS mbar Select units, mbar3 RATE VALUE 100 Select rate 100mbar/min4 RESOLUTION 5 Display resolution 5 digits5 IN LIMITS Sets the In-limits band6 IN LIMITS TIME 10 (00:00:10) secs
7SETTLING NO OVERSHOOT
No overshoot
8 TEXT Operator instruction, e.g.“Connect UUT”9 ZERO Performs a sensor zero10 SET POINT 400 Set-point, 400 mbar11 CONTROL Controller ON12 WAIT IN LIMITS Wait for In-limits condition13 BEEP ON Beep on, approx. 1sec, Beep off14 MEASURE Switch to measure (controller off)15 DWELL 30 Wait, 30 sec16 SET POINT 800 Set-point, 800 mbar17 CONTROL Controller on18 WAIT IN LIMITS Wait for In-limits condition19 BEEP ON Beep on, approx. 1sec, Beep off20 MEASURE Switch to measure, controller off21 COUNT 1 Increment loop counter22 VENT Vent23 GOTO 9 Loop back to program line 924 BREAK25 SET POINT 026 WAIT IN LIMITS27 MEASURE28 END Program end
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Reference and Specification
Barometric Reference Option
The barometric reference option measures the barometric pressure at the reference port.When installed, this option allows absolute or gauge pressure range selection. To obtain absolute pressure the instrument uses a summation of gauge pressure and barometric pressure (measured by the barometric sensor).
Ref: Data sheet 920-561 for the barometric reference and precision of absolute ranges.
Baro
met
ric P
ress
ure
2bar
abs
+1ba
r g
-1ba
r g
11ba
r abs
+10b
ar g
1350
mba
r abs
650m
bar a
bs
0bar
abs
(Abs
olut
e Ze
ro P
ress
ure)
+350
mba
r g
-350
mba
r g
1070
mba
r abs
930m
bar a
bs
+70m
bar g
-70m
bar g
Gau
ge re
fere
nce
pres
sure
70m
bar C
ontr
ol M
odul
e w
ith B
arom
etric
Opt
ion
Gau
ge R
ange
= ±
70m
bar g
Pseu
do A
bsol
ute
Rang
e =
930m
bar a
bs to
107
0mba
r abs
350m
bar C
ontr
ol M
odul
e w
ith B
arom
etric
Opt
ion
Gau
ge R
ange
= ±
350m
bar g
Pseu
do A
bsol
ute
Rang
e =
650m
bar a
bs to
135
0mba
r abs
10ba
r Con
trol
Mod
ule
with
Bar
omet
ric O
ptio
nG
auge
Ran
ge =
-1ba
r g to
+10
bar g
Pseu
do A
bsol
ute
Rang
e =
0bar
abs
to 1
1bar
abs
1bar
Con
trol
Mod
ule
with
Bar
omet
ric O
ptio
nG
auge
Ran
ge =
±1b
ar g
Pseu
do A
bsol
ute
Rang
e =
0bar
abs
to 2
bar a
bs
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PACE Pressure Controller User Manual
Aeronautical Option
The aeronautical option is a specialised application of the PACE instrument.Note: The PACE instrument must be set-up very carefully so that the aeronautical pressures
applied do not exceed maximum pressure values and rates of change.Leak testing
CAUTIONS
DO NOT EXCEED THE MAXIMUM PRESSURES STATED IN THE APPROPRIATE COMPONENT MAINTENANCE MANUAL FOR THE UNIT UNDER TEST.
CAREFULLY DE-PRESSURIZE ALL PIPES TO ATMOSPHERIC PRESSURE BEFORE DISCONNECTING AND CONNECTING TO THE UNIT UNDER TEST.
Before testing an aeronautical component do a leak test.This task sets the test pressure, dwell time at the test pressure and the leak test time.At the start of the test, the instrument applies a test pressure to the user system.A dwell time allows the user system to stabilise.Aeronautical testingThe aeronautical task enables control and measurement of the following:• Altitude (feet/metres)• Airspeed (knots, mph, km/h)This task utilises dual pressure displays to show the parameter and the rate of change of the following:• Altitude• Airspeed• Mach and Airspeed with Mach numberThe aeronautical task enables the testing and calibration checking of aeronautical indicators and system components by controlling and displaying values and rates in aeronautical units.When using a single instrument, the pressure supply must be changed when changing from Altitude to Airspeed.
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Reference and Specification
Example of Altitude and Airspeed TestingThis example shows how two-channel PACE instruments can be used to generate altitude and airspeed.
CAUTIONS
BEFORE TESTING, SET THE RATES OF CHANGE FOR BOTH PITOT AND STATIC TO A SAFE VALUE. A HIGH RATE OF CHANGE CAN DAMAGE SENSITIVE AERONAUTICAL COMPONENTS. REFER TO THE APPROPRIATE COMPONENT MAINTENANCE MANUAL FOR THE UNIT UNDER TEST.
IN THIS EXAMPLE CONFIGURATION, NEGATIVE AIRSPEED CAN BE GENERATED THIS CAN DAMAGE AN AIRSPEED INDICATOR. TO PREVENT NEGATIVE AIRSPEED, APPLY THE STATIC PRESSURE BEFORE THE PITOT PRESSURE FOR INCREASING AND DECREASING AIRSPEED VALUES.
SUPPLY OUTLET VENT REF+ -
Module 2SUPPLY OUTLET VENT REF
+ -
Module 1
Rear view of instrument
SUPPLY OUTLET VENT REF+ -
Module 2SUPPLY OUTLET VENT REF
+ -
Module 1
Altimeter ASI/Mach
Pt Ps
QcRear view of instrument
Pitot Static
Open to Atmosphere
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PACE Pressure Controller User Manual
UnitsThe units can be either the aeronautical or pressure units. The units can be changed any time between pressure and pressure converted to aeronautical units. The display shows the output pressure converted to Altitude, CAS or Mach using BS 2G 199:1984* conversions and assuming standard atmospheric conditions.* Based on tables from ICAO Standard Atmosphere 1964.Reference PressureSelect the required reference pressure, this can be either the barometric pressure (from the instrument’s internal barometric sensor), or any numeric value (e.g.) 1013.25 mbar.Go to groundReturns the instrument and any UUT, connected to it, safely to ground pressure at a controlled rate.
SUPPLY OUTLET VENT REF+ -
Module 2SUPPLY OUTLET VENT REF
+ -
Module 1
Pressure source
Pressure regulator
Pressure regulator
Rear view of PACE instrument
Vacuum source
AltimeterASI/Mach
Static Static
Pitot
Pitot Static (Altitude)
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Reference and Specification
Control of Aeronautical parameters
The aeronautical control is an intergrated controller. The two modules work together as a dual channel pressure controller (Ref: Figure 6-3).In aeronautical mode, the display goes to the last selected parameter:• Altitude• Airspeed• Mach
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PACE Pressure Controller User Manual
Figure 6-3 Screen layout
In dual screen mode both altitude and airspeed controllers are set to control mode, by selecting the Enter Control key (Ref: Figure 6-3).The Enter Measure key sets both controllers to measure mode. Select 1 (Go to Ground) in (Ref: Figure 6-3) to make both controllers go to ground.
Figure 6-4 Measurement mode
(Ref: Figure 6-4) both controllers in measurement mode.
1
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Reference and Specification
Figure 6-5 Control mode
(Ref: Figure 6-5) both controllers in control mode.In control mode each control can have an individual set-point.Select 1 (Hold) in (Ref: Figure 6-5) to hold a set altitude or speed.Note: The altitude and airspeed controllers are still actively ON, but held at the selected
range.
Figure 6-6 Set-points
Select 1 (Resume) in (Ref: Figure 6-6) to continue to the altitude and speed set-points.
1
1
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Analogue Output Option
The analogue output option provides a selectable output of voltage or current.
Pin number Function Pin number Function1 not used 9 not used2 not used 10 0V return3 not used 11 +24V DC OUT @ 100mA4 not used 12 SW IN 15 not used 13 SW IN 26 not used 14 analogue +7 not used 15 analogue -8 not used
Selects Analogue Output Range
On/Off
Update rate of Analogue Output option from the control module.
Analogue Output Bandwidth = 0.5 x Update Rate (Hz)
analogue connections
30V maximum with respect to chassis.Rated output = 24V
30Vmax
To maintain PACE product safety, external circuits connected to the instrument must meet Safety Extra-Low Voltage (SELV) requirements.
15-way female D connector
Front view of Analogue Option PCB connector
12345678
15 14 13 12 11 10 9
30Vmax
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Reference and Specification
Volts-free Contact Option
The Volts-free Contact option provides a selectable output of voltage or current.
Pin number Function Pin number Function1 Relay 1 normally CLOSED 9 Relay 3 common2 Relay 1 normally OPEN 10 0V return3 Relay 1 common 11 +24V DC OUT @ 100mA4 Relay 2 normally CLOSED 12 SW IN 15 Relay 2 normally OPEN 13 SW IN 26 Relay 2 common 14 not used7 Relay 3 normally CLOSED 15 not used8 Relay 3 normally OPEN
Each selection has three Volts-free Contacts.
Selection of trigger conditions.
Selection of trigger conditions.
volts-free connections
30V maximum with respect to chassis.Rated output = 24V
30Vmax
To maintain PACE product safety, external circuits connected to the instrument must meet Safety Extra-Low Voltage (SELV) requirements.
0V
+Veventtrigger
24 Vdc maximum30 Vdc wrt chassis1 A resistive maximum
Typical Volts-free schematic
Relay contacts rated at 30 Vdc, 1 A resistive, 200 mA inductive.
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6.9 CalibrationThe calibration menu provides facilities for programming settings for maintenance as follows:Note: A PIN protects the Calibration menu against unauthorised use. Each instrument, on
delivery, contains the factory set PIN (4321). To continue protecting the supervisor set-up menu, the PIN should be changed as soon as possible.
6.10 Communications - Instrument Emulation(Ref: K0469 - PACE Communications Manual - Instrument Emulation).
6.11 Specification(Ref: PACE Module Pressure Controller data sheet).Note: Data sheet 920-561 is contained in the CD shipped with the product.
6.12 Return Goods/Material ProcedureIf the unit requires calibration or is unserviceable return it to the nearest GE Service Centre listed at www.gemeasurement.com.Contact the Service Department, by 'phone, fax or E-mail to obtain a Return Goods Authorisation (RGA) (Worldwide excluding USA).In the USA obtain a Return Material Authorization [RMA].• Product (i.e. PACE5000)• Serial number• Details of defect/work to be undertaken• Calibration traceability requirements• Operating conditionsSafety Precautions
You must inform GE if the product has been in contact with any hazardous or toxic substance.The relevant COSHH or in the USA, MSDS, references and precautions to be taken when handling.
+ve source zero-ve source zerosensor correction Selects the range for a three-point calibration routine.valve correctionsource PDCR correction three-point calibration of both source pressure sensorsscreen calibrationTime & Date Sets instrument clock and calendar.
Change PIN
Changes the Calibration PIN. Enter the existing PIN, the new PIN and confirmation of the new PIN. Should this new PIN become lost it can only be reset by returning the instrument to a GE ser-vice centre.
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Reference and Specification
Important Notice
Service or calibration by unauthorized sources will affect the warranty and may not guarantee further performance.
6.13 Packaging Procedure1. The instrument should be at zero/ambient pressure.2. Switch off and isolate the electrical power supply to the instrument.3. Shut off the pneumatic pressure and vacuum supplies to the instrument.4. Remove the instrument from the equipment rack to access the rear panel.5. Disconnect the power supply cable and the pneumatic supply hose assemblies.6. Stow the power supply cable in the packaging below.7. Remove any pressure adaptors, diffusers and restrictors.If available, use the original packing material. When using packing materials other than the original, do the following:8. Fit protection to all the ports to prevent ingress of moisture and dirt.Note: Use the original red plastic plugs or low tack masking tape.9. Wrap unit in polyethylene sheeting.10. Select a double-wall cardboard container.
• Inside dimensions must be at least 15 cm (6”) greater than the equipment• The carton must meet test strength requirements of >125 kg (275 lbs).
11. Protect all sides with shock-absorbing material to prevent equipment movement within the container.
12. Seal carton with approved sealing tape.13. Mark carton “FRAGILE” on all sides, top, and bottom of shipping container.Environment
The following conditions apply for both shipping and storage:• Temperature range: -20° to +70°C (-4° to +158°F)
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6.14 Vacuum System PartsThe parts list below lists a typical system to supply vacuum, enabling the control of sub-atmospheric pressures by the PACE instrument. Part numbers quoted in the table are taken from the BOC Edwards Vacuum Products Catalogue. For more information, go to: www.bocedwards.com.
Description Part Number Quantity
RV5 115/230Vac Vacuum Pump, 91 litre/min A653-01-903 1
EMF10 Mist Filter A462-26-000 1
NW25/NW10 Reducer fitting C105-14-436 2
NW10 T-Piece Fitting C105-11-411 1
IPVA10EK Air Admittance Valve, Normally Open C417-21-000 1
NW10 Flexible Pipeline 1m, S/S C105-11-287 4
NW10 Clamping Ring C105-12-401 5
NW10 Centering Ring C105-11-398 5
NW25 Clamping Ring C105-14-401 3
NW25 Centering Ring C105-14-398 3
NW16/10 Centering Ring C105-12-349 1
NW16 to ¼NPT Male Adapter, S/S C105-01-103 1
FL20K Foreline Trap FL-20-K 1
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